Dustproof CPU cooling fan

Abstract

The utility model relates to the technical field of CPUs, and discloses a dustproof CPU cooling fan which comprises a cooling shell, the inner bottom wall of the cooling shell is slidably connected with a fixing frame, the inner wall of the fixing frame is fixedly connected with a plurality of graphene cooling fins, the left side of the fixing frame is fixedly connected with a bismuth telluride module, and the right side of the fixing frame is fixedly connected with a plurality of graphene cooling fins. The left side of the bismuth telluride module is fixedly connected with a paraffin plate, the left side of the paraffin plate and the right side of the fixing frame are fixedly connected with the same bidirectional pulsating heat pipe, the rear side of the inner bottom wall of the heat dissipation shell is fixedly connected with a fixing frame, and the top of the fixing frame is fixedly connected with a first servo motor. According to the utility model, the heat of the CPU is transmitted through the paraffin plate, the heat is conducted to the graphene cooling fin through the bidirectional pulsating heat pipe, the first servo motor drives the cooling fan to accelerate the dissipation of the heat on the graphene cooling fin, and meanwhile, part of the heat transmitted by the paraffin plate is converted into electric power through the thermoelectric module and is stored in the storage battery for later use.

Description

Technical Field

[0001] This utility model relates to the field of CPU technology, and in particular to a dustproof CPU cooling fan. Background Technology

[0002] With the widespread application of computers in various fields, computer hardware technology is also constantly developing. As the core component of a computer system, the CPU undertakes the key functions of data processing and computing, as well as the coordinated control of various computer components. Its performance is getting stronger and stronger, and its power consumption and heat generation are increasing accordingly. Therefore, people's requirements for cooling fans are also getting higher and higher. At the same time, as people pay more attention to the user experience of electronic products, and since the computer's operating speed, multitasking ability, and overall performance all depend on the performance of the CPU, dustproof CPU cooling fans are becoming more and more popular.

[0003] While dustproof CPU cooling fans can effectively reduce dust ingress, dust filters or baffles increase airflow resistance, reducing fan airflow and impacting cooling performance, especially under high load conditions where temperature control is compromised. Current solutions utilize high thermal conductivity materials like copper and aluminum, heat pipes, water-based thermal coatings, and radiative cooling designs to improve passive cooling efficiency, completely eliminating fan dust accumulation and maintenance needs. However, passive cooling relies on ambient temperature, and under high loads, CPU temperatures can easily exceed limits, failing to meet the demands of high-performance devices. Furthermore, to compensate for cooling inefficiencies, pure copper is required for high-efficiency heat dissipation, significantly increasing costs. Utility Model Content

[0004] To overcome the above shortcomings, this utility model provides a dustproof CPU cooling fan, which aims to improve the problem that passive cooling in the existing technology cannot meet the needs of high-performance equipment, and that the use of a large amount of pure copper increases costs.

[0005] To achieve the above objectives, this utility model adopts the following technical solution: a dustproof CPU cooling fan, comprising a heat sink, a fixed frame slidably connected to the inner bottom wall of the heat sink, multiple graphene heat sinks fixedly connected to the inner wall of the fixed frame, a bismuth telluride module fixedly connected to the left side of the fixed frame, a paraffin plate fixedly connected to the left side of the bismuth telluride module, the same bidirectional pulsating heat pipe fixedly connected to the left side of the paraffin plate and the right side of the fixed frame, a fixed bracket fixedly connected to the rear side of the inner bottom wall of the heat sink, and a servo motor fixedly connected to the top of the fixed bracket. A cooling fan is fixedly connected to the output end of motor one. An air diffuser is fixedly connected to the middle of the inner bottom wall of the heat sink. Multiple thermoelectric modules are fixedly connected to the left side of the paraffin plate. A storage battery is fixedly connected to the top of the inner wall of the mounting bracket. Mounting slots are provided on both the front and rear sides of the inner wall of the heat sink. Dustproof nets are slidably connected to the inner walls of the mounting slots on both the front and rear sides. Two blocking blocks are fixedly connected to the upper and lower sides of the inner wall of the heat sink. An installation and fixing mechanism is provided on the outer wall of the heat sink. The installation and fixing mechanism is used for quick installation of the equipment and enables the equipment to quickly adapt to the environment of the object to be cooled.

[0006] As a further description of the above technical solution:

[0007] The mounting and fixing mechanism includes an L-shaped fixing plate. The inner wall of the L-shaped fixing plate is fixedly connected to the front side of the outer wall of the heat sink. Multiple fixing holes are opened on the outer side of the L-shaped fixing plate. A T-shaped slider is fixedly connected to the bottom of the outer wall of the fixing frame. A sliding groove is opened on the front side of the inner bottom wall of the heat sink. A second servo motor is fixedly connected to the front side of the inner bottom wall of the heat sink. A large gear is fixedly connected to the output end of the second servo motor. A lead screw nut is rotatably connected to the right side of the inner wall of the sliding groove. A small gear is fixedly connected to the rear end of the outer side of the lead screw nut.

[0008] As a further description of the above technical solution:

[0009] Multiple parent magnetic blocks are fixedly connected to the inner walls of the mounting grooves on both the front and rear sides, and multiple child magnetic blocks are fixedly connected to the adjacent side of the dustproof nets on both the front and rear sides.

[0010] As a further description of the above technical solution:

[0011] Multiple limiting grooves are provided on both the front and rear sides of the heat dissipation shell, and multiple limiting blocks are fixedly connected to the opposite sides of the dustproof mesh on both the front and rear sides.

[0012] As a further description of the above technical solution:

[0013] A temperature detector is fixedly connected to the top of the bismuth telluride module, and a temperature display is fixedly connected to the right side of the outer wall of the heat sink.

[0014] As a further description of the above technical solution:

[0015] A fixing block is fixedly connected to the right side of the outer wall of the heat sink, and an identification plate is fixedly connected to the right side of the fixing block.

[0016] As a further description of the above technical solution:

[0017] A lamp holder is fixedly connected to the top of the inner wall of the heat sink, and a lighting lamp is threadedly connected to the bottom of the lamp holder.

[0018] As a further description of the above technical solution:

[0019] A vibrator is fixedly connected to the left side of the inner wall of the heat sink, and a dust collection box is fixedly connected to the rear side of the heat sink.

[0020] This utility model has the following beneficial effects:

[0021] In this invention, heat from the CPU is transferred through a paraffin plate, and the heat absorbed by the paraffin plate is transferred to the graphene heat sink using a bidirectional pulsating heat pipe. Then, a servo motor is started to drive a cooling fan to dissipate heat from the graphene heat sink, thereby accelerating the heat conduction speed of the CPU. In addition, part of the heat transferred by the paraffin plate is converted into electricity through a thermoelectric module and stored in a battery for backup.

[0022] In this invention, the device is fixed by screws passing through the L-shaped fixing plate. When the front end of the fixing plate is fixed, the dustproof net on the front side is removed, and the servo motor is started. Through the meshing relationship between the large gear and the small gear, the lead screw nut is rotated, so that the paraffin plate and the components on the left side of the paraffin plate can be more closely attached to the CPU, thereby enhancing the heat dissipation effect. Attached Figure Description

[0023] Figure 1 This is a perspective view of a dustproof CPU cooling fan proposed in this utility model;

[0024] Figure 2 This is a cross-sectional view of the heat sink housing of a dustproof CPU cooling fan proposed in this utility model.

[0025] Figure 3 This is a schematic diagram of the fixing frame of a dustproof CPU cooling fan proposed in this utility model;

[0026] Figure 4 This is a split view of the dustproof mesh of a dustproof CPU cooling fan proposed in this utility model;

[0027] Figure 5 This is a schematic diagram of the mounting and fixing mechanism for a dustproof CPU cooling fan proposed in this utility model.

[0028] Legend:

[0029] 1. Heat sink housing; 2. Mounting and fixing mechanism; 201. L-shaped fixing plate; 202. Fixing hole; 203. T-shaped slider; 204. Slide groove; 205. Servo motor II; 206. Large gear; 207. Small gear; 208. Lead screw nut; 3. Fixing frame; 4. Graphene heat sink; 5. Bismuth telluride module; 6. Paraffin wax plate; 7. Bidirectional pulsating heat pipe; 8. Fixing bracket; 9. Servo motor I; 10. Cooling fan; 11. Air diffuser; 12. Thermoelectric module; 13. Battery; 14. Mounting slot; 15. Dustproof net; 16. Mother magnet; 17. Daughter magnet; 18. Limiting slot; 19. Limiting block; 20. Temperature detector; 21. Temperature display; 22. Fixing block; 23. Sign; 24. Lamp holder; 25. Lighting lamp; 26. Vibrator; 27. Dust collection box; 28. Barrier block. Detailed Implementation

[0030] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0031] Reference Figure 2 , Figure 3 and Figure 4This utility model provides an embodiment of a dustproof CPU cooling fan, including a heat sink 1. A fixing frame 3 is slidably connected to the inner bottom wall of the heat sink 1. Multiple graphene heat sinks 4 are fixed within a frame by the fixing frame 3, increasing the gaps between the multiple graphene heat sinks 4. Multiple graphene heat sinks 4 are fixedly connected to the inner wall of the fixing frame 3, which can increase the heat transfer rate. A bismuth telluride module 5 is fixedly connected to the left side of the fixing frame 3, which can achieve active cooling. A paraffin plate 6 is fixedly connected to the left side of the bismuth telluride module 5, which is used to absorb and transfer the heat of the CPU. The left side of the paraffin plate 6 and the right side of the fixing frame 3 are also connected. All are fixedly connected to the same bidirectional pulsating heat pipe 7, which can accelerate the overall heat transfer speed. A fixing bracket 8 is fixedly connected to the rear side of the inner bottom wall of the heat sink 1. The fixing bracket 8 is used to fix the servo motor 9. The top of the fixing bracket 8 is fixedly connected to the servo motor 9, which provides power to the cooling fan 10. The output end of the servo motor 9 is fixedly connected to the cooling fan 10, which is used to accelerate the heat dissipation speed of multiple graphene heat sinks 4. An air diffuser 11 is fixedly connected to the middle of the inner bottom wall of the heat sink 1. The air diffuser 11 is used to increase the effective range of the air blown by the cooling fan 10. Multiple thermoelectric modules 1 are fixedly connected to the left side of the paraffin plate 6. 2. Multiple thermoelectric modules 12 can convert part of the heat absorbed by the CPU by the paraffin plate 6 into electricity. A battery 13 is fixedly connected to the top of the inner wall of the mounting bracket 8. The battery 13 is used to store the electricity converted by the thermoelectric modules 12. The inner wall of the heat sink 1 has mounting grooves 14 on both the front and rear sides. The mounting grooves 14 provide sliding space for the dustproof net 15. The inner walls of the front and rear mounting grooves 14 are slidably connected to the dustproof net 15. The dustproof net 15 blocks the dust driven by the cooling fan 10. Two blocking blocks 28 are fixedly connected to the upper and lower sides of the inner wall of the heat sink 1. Multiple blocking blocks 28 can prevent the dustproof net 15 from falling off easily. The outer wall of the heat sink 1 is provided with a mounting and fixing mechanism 2. The fixing mechanism 2 is used for quick installation of equipment and to enable the equipment to quickly adapt to the environment of the object to be cooled. Multiple parent magnetic blocks 16 are fixedly connected to the inner walls of the front and rear mounting slots 14. Multiple child magnetic blocks 17 are fixedly connected to the adjacent side of the front and rear dustproof nets 15. The multiple parent magnetic blocks 16 and multiple child magnetic blocks 17 can increase the stability of the dustproof nets 15 and prevent the dustproof nets 15 from falling off when the equipment is moved. Multiple limiting slots 18 are opened on the front and rear sides of the heat dissipation shell 1. Multiple limiting blocks 19 are fixedly connected to the opposite side of the front and rear dustproof nets 15. The multiple limiting slots 18 and multiple limiting blocks 19 provide guidance for the installation of the dustproof nets 15 and also facilitate the removal of the dustproof nets 15.

[0032] Specifically, when the CPU starts working and generates heat, the paraffin plate 6 absorbs the heat from the CPU. The heat is then transferred through the paraffin plate 6 to the bidirectional pulsating heat pipe 7, which quickly transfers the heat to the fixed frame 3 and the graphene heat sink 4 inside the fixed frame 3. At the same time, the bismuth telluride module 5 starts to actively cool and reduce the temperature of the heat dissipation components. Then, the servo motor 9 is started, driving the cooling fan 10 to rotate. The air blown out is diffused by the air diffuser 11 and acts on the multiple graphene heat sinks 4, accelerating the heat dissipation speed of the graphene heat sinks 4 and dissipating the heat into the surrounding environment. During the process of the paraffin plate 6 absorbing heat, multiple thermoelectric modules 12 can also convert some of the heat absorbed by the paraffin plate 6 from the CPU into electricity. The generated electricity is stored in the battery 13 for subsequent use, such as providing power to the servo motor 9 or the lighting 25, thus increasing the utilization of heat. During the rotation of the cooling fan 10, the surrounding air will be circulated. Dust in the air is blocked when it passes through the dust filter 15, preventing dust from entering the heat sink 1 and affecting the normal operation and heat dissipation effect of the heat dissipation components. When the dust filter 15 accumulates a lot of dust and can only be cleaned manually, due to the guiding effect of the limiting block 19 and the limiting groove 18, and the relatively easy separation of the connection between the mother magnetic block 16 and the daughter magnetic block 17, the dust filter 15 can be slid out along the mounting groove 14 in the opposite direction and then cleaned or replaced. After cleaning, the dust filter 15 is inserted along the mounting groove 14, so that the daughter magnetic block 17 will attract the mother magnetic block 16 to help fix the dust filter 15. At the same time, the limiting block 19 slides along the limiting groove 18 to ensure that the dust filter 15 is accurately installed in the correct position. When the dust filter 15 is fully inserted, the blocking block 28 can prevent the dust filter 15 from falling, increasing the stability of the dust filter 15.

[0033] Reference Figure 1 , Figure 2 and Figure 5The mounting and fixing mechanism 2 includes an L-shaped fixing plate 201, which is used to fix the equipment. The inner wall of the L-shaped fixing plate 201 is fixedly connected to the front side of the outer wall of the heat sink 1. The outer side of the L-shaped fixing plate 201 has multiple fixing holes 202, which facilitate the use of screws. A T-shaped slider 203 is fixedly connected to the bottom of the outer wall of the fixing frame 3. The T-shaped slider 203 slides in the slide groove 204 and can drive the fixing frame 3 to move. The front side of the inner bottom wall of the heat sink 1 has a slide groove 204, which provides support for the T-shaped slider 203. Provides a moving space. A servo motor 205 is fixedly connected to the front side of the inner bottom wall of the heat sink 1. The servo motor 205 is used to provide power for the movement of the T-shaped slider 203. A large gear 206 is fixedly connected to the output end of the servo motor 205. The large gear 206 is used to transmit the power of the servo motor 205. A lead screw nut 208 is rotatably connected to the right side of the inner wall of the slide groove 204. The T-shaped slider 203 is moved by the lead screw nut 208. A small gear 207 is fixedly connected to the outer rear end of the lead screw nut 208. The small gear 207 is used to drive the lead screw nut 208 to rotate.

[0034] Specifically, when the front side of the L-shaped fixing plate 201 can directly contact the CPU, the position of the fixing frame 3 inside the heat sink 1 needs to be adjusted so that the bidirectional pulsating heat pipe 7 and the thermoelectric module 12 are as close to the CPU as possible. First, remove the dust filter 15 on the front side, and then start the servo motor 205. The servo motor 205 starts to run, and the output end of the servo motor 205 drives the large gear 206 to rotate. The rotating large gear 206 transmits power to the small gear 207 through the meshing connection with the small gear 207, causing the small gear 207 to rotate. Since the small gear 207 is fixedly connected to the outer rear end of the lead screw nut 208, the rotation of the small gear 207 causes the lead screw nut 208 to rotate on the inner wall of the slide groove 204. Because the lead screw nut 208 and the T-shaped slider 203 have a threaded connection, when the lead screw nut 208 rotates, it drives the T-shaped slider 203 to rotate. 03. Moving within the slide 204, since the T-shaped slider 203 is fixedly connected to the bottom of the outer wall of the fixed frame 3, the movement of the T-shaped slider 203 drives the fixed frame 3 to move within the heat sink 1, thereby adjusting the position of the fixed frame 3. When the fixed frame 3 moves to the appropriate position, the servo motor 205 is turned off, stopping the movement of the fixed frame 3. The inner wall of the L-shaped fixing plate 201 is fixedly connected to the front side of the outer wall of the heat sink 1. Then, the heat sink 1 with the L-shaped fixing plate 201 is placed on the corresponding position of the equipment where the cooling fan needs to be installed. Using the multiple fixing holes 202 opened on the outside of the L-shaped fixing plate 201, screws are passed through the fixing holes 202 to fix the heat sink 1 on the equipment, completing the initial installation of the heat sink 1. If there is a certain space between the installation position of the L-shaped fixing plate 201 and the CPU, then only the L-shaped fixing plate 201 needs to be fixed.

[0035] Reference Figure 1 , Figure 2 and Figure 3 A temperature detector 20 is fixedly connected to the top of the bismuth telluride module 5. The temperature detector 20 is used to detect the temperature near the CPU. A temperature display 21 is fixedly connected to the right side of the outer wall of the heat sink 1. The temperature display 21 is used to display the detection result of the temperature detector 20. A fixing block 22 is fixedly connected to the right side of the outer wall of the heat sink 1. A sign 23 is fixedly connected to the right side of the fixing block 22. The sign 23 is used to identify the basic information of the device. A lamp holder 24 is fixedly connected to the top of the inner wall of the heat sink 1. A lighting lamp 25 is threaded to the bottom of the lamp holder 24. The lighting lamp 25 is used to provide light inside the heat sink 1. A vibrator 26 is fixedly connected to the left side of the inner wall of the heat sink 1. The vibrator 26 shakes the dust off the dustproof mesh 15. A dust collection box 27 is fixedly connected to the rear side of the heat sink 1. The dust collection box 27 collects the dust that falls off the dustproof mesh 15 and prevents the dust from falling randomly.

[0036] Specifically, after the device is installed and started, it can wirelessly connect the dustproof CPU cooling fan to a smart device for easy control. Once the CPU starts working, the temperature detector 20 monitors the temperature near the CPU in real time. Because the temperature detector 20 is close to the CPU, it accurately obtains temperature information around the CPU. The temperature detector 20 transmits the detected results to the temperature display 21. Upon receiving the signal, the temperature display 21 clearly displays the temperature value or status near the CPU in digital or graphical form, allowing users to intuitively understand the CPU's operating temperature. Before installation or use, staff can label the device's basic information on the identification plate 23. Other personnel can quickly obtain information by checking the identification plate 23, which helps with device management, maintenance, and identification. The lamp holder 24 is fixedly connected to the heat sink 1. The top of the inner wall is covered by a lighting lamp 25, which is threaded onto a lamp holder 24 for easy replacement if damaged. When it is necessary to check the inside of the heat sink 1, the lighting lamp 25 can be operated via a smart device to illuminate the inside of the heat sink 1. As the equipment operates, the dustproof net 15 traps dust in the air and gradually accumulates. Because the installation position of the vibrator 26 is close to the fixed position of the dustproof net 15, the vibration generated by the vibrator 26 after startup is directly transmitted to the dustproof net 15, causing the dustproof net 15 to shake and shake off the attached dust. Due to gravity, the dust falls downwards. A dust collection box 27 is fixedly connected to the rear side of the heat sink 1, and the falling dust will fall into the dust collection box 27, preventing dust from being scattered around the equipment and keeping the working environment of the equipment clean. It also facilitates subsequent cleaning and treatment of dust.

[0037] Working principle: When the CPU generates heat, the paraffin plate 6 is in close contact with the CPU, utilizing the properties of paraffin to absorb heat. At a certain temperature, the paraffin changes from solid to liquid, thus absorbing a large amount of heat and effectively buffering the CPU's temperature rise, playing a preliminary role in thermal management. Heat is then transferred from the paraffin plate 6 to the bidirectional pulsating heat pipe 7, which is filled with an appropriate amount of ethanol. The working fluid on one side of the paraffin plate 6 absorbs heat and evaporates to form vapor. The vapor quickly flows towards the fixed frame 3 and the graphene heat sink 4, releasing heat and condensing into liquid, then flowing back, achieving efficient heat transfer. When current flows through the bismuth telluride module 5, one side of the module absorbs heat, while the other side releases heat, bringing the cold side close to the heat dissipation component. By consuming electrical energy, the temperature of the heat dissipation component is actively reduced, enhancing the heat dissipation effect. The servo motor 9 drives the cooling fan 10 to rotate, accelerating airflow. After the diffuser 11, the airflow range expands, allowing it to act evenly on multiple graphene heat sinks 4. The graphene heat sinks 4 have high thermal conductivity, enabling them to quickly transfer heat to the surrounding air and further reduce the temperature of the heat dissipation components. When one end of the thermoelectric module 12 contacts the paraffin plate 6 that has absorbed the CPU heat, the temperature is higher, while the other end is relatively lower. This generates an electromotive force inside the thermoelectric module 12, converting thermal energy into electrical energy. The generated electrical energy is stored in the battery 13, realizing the recovery and utilization of heat. This energy is used to power the servo motor 9 or the lighting lamp 25, improving energy utilization efficiency. During the rotation of the cooling fan 10, it drives the surrounding airflow, forming an airflow. Dust in the air moves with the airflow. When it passes through the dustproof net 15, the dustproof net 15 intercepts the dust on its surface, preventing dust from entering the heat sink 1 and extending the service life of the cooling fan.

[0038] Furthermore, when the position of the fixed frame 3 needs to be adjusted, servo motor 205 is activated. Servo motor 205 acts as a power source, and its output rotation drives the large gear 206 to rotate. The large gear 206 is meshed with the small gear 207, causing the small gear 207 to rotate. Since the small gear 207 is fixedly connected to the outer rear end of the lead screw nut 208, its rotation drives the lead screw nut 208 to rotate on the inner wall of the slide groove 204. When the lead screw nut 208 rotates, due to the threaded connection between the lead screw nut 208 and the T-shaped slider 203, the T-shaped slider 203 moves along the axial direction of the lead screw within the slide groove 204. The T-shaped slider 203 is fixedly connected to the bottom of the outer wall of the fixed frame 3. The movement of the T-shaped slider 203 drives the fixed frame 3 to move within the heat sink 1. Thus, through the rotation of servo motor 205, precise adjustment of the fixed frame 3's position within the heat sink 1 is achieved. To meet the requirement that the bidirectional pulsating heat pipe 7 and the thermoelectric module 12 be as close to the CPU as possible, thereby improving the efficiency of heat dissipation and thermoelectric conversion, when the front side of the L-shaped mounting plate 201 can directly contact the CPU, first remove the dust filter 15 on the front side to facilitate the adjustment of the position of the mounting frame 3. Then, using the multiple mounting holes 202 on the outside of the L-shaped mounting plate 201, screws are passed through the mounting holes 202 to fix the heat sink 1 to the device where the CPU is located, so that the heat sink 1 can be stably installed on the device where the CPU is located. By adjusting the position of the mounting frame 3, the heat dissipation component is brought as close to the CPU as possible, thereby improving the efficiency of heat dissipation and thermoelectric conversion. If there is a certain space between the installation position of the L-shaped mounting plate 201 and the CPU, it is not necessary to adjust the position of the mounting frame 3. Simply use screws to fix the L-shaped mounting plate 201 through the mounting holes 202 on the outside of the L-shaped mounting plate 201, thereby realizing the installation of the heat sink 1.

[0039] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A dustproof CPU cooling fan, comprising a heatsink housing (1), characterized in that: A fixed frame (3) is slidably connected to the inner bottom wall of the heat sink (1). Multiple graphene heat sinks (4) are fixedly connected to the inner wall of the fixed frame (3). A bismuth telluride module (5) is fixedly connected to the left side of the fixed frame (3). A paraffin plate (6) is fixedly connected to the left side of the bismuth telluride module (5). The same bidirectional pulsating heat pipe (7) is fixedly connected to the left side of the paraffin plate (6) and the right side of the fixed frame (3). A fixed bracket (8) is fixedly connected to the rear side of the inner bottom wall of the heat sink (1). A servo motor (9) is fixedly connected to the top of the fixed bracket (8). A cooling fan (10) is fixedly connected to the output end of the servo motor (9). An air diffuser (11) is fixedly connected to the middle of the inner bottom wall of (1). Multiple thermoelectric modules (12) are fixedly connected to the left side of the paraffin plate (6). A storage battery (13) is fixedly connected to the top of the inner wall of the fixing frame (8). The inner wall of the heat dissipation shell (1) is provided with mounting grooves (14) on both the front and rear sides. Dustproof nets (15) are slidably connected to the inner walls of the mounting grooves (14) on both the front and rear sides. Two blocking blocks (28) are fixedly connected to the upper and lower sides of the inner wall of the heat dissipation shell (1). The outer wall of the heat dissipation shell (1) is provided with an installation and fixing mechanism (2). The installation and fixing mechanism (2) is used to quickly install the equipment and enable the equipment to quickly adapt to the environment of the object to be dissipated.

2. The dustproof CPU cooling fan according to claim 1, characterized in that: The mounting and fixing mechanism (2) includes an L-shaped fixing plate (201). The inner wall of the L-shaped fixing plate (201) is fixedly connected to the front side of the outer wall of the heat sink (1). Multiple fixing holes (202) are opened on the outer side of the L-shaped fixing plate (201). A T-shaped slider (203) is fixedly connected to the bottom of the outer wall of the fixing frame (3). A sliding groove (204) is opened on the front side of the inner bottom wall of the heat sink (1). A servo motor (205) is fixedly connected to the front side of the inner bottom wall of the heat sink (1). A large gear (206) is fixedly connected to the output end of the servo motor (205). A lead screw nut (208) is rotatably connected to the right side of the inner wall of the sliding groove (204). A small gear (207) is fixedly connected to the rear end of the outer side of the lead screw nut (208).

3. A dustproof CPU cooling fan according to claim 1, characterized in that: Multiple parent magnetic blocks (16) are fixedly connected to the inner walls of the mounting grooves (14) on the front and rear sides, and multiple child magnetic blocks (17) are fixedly connected to the adjacent side of the dustproof nets (15) on the front and rear sides.

4. A dustproof CPU cooling fan according to claim 1, characterized in that: Multiple limiting grooves (18) are provided on the front and rear sides of the heat dissipation shell (1), and multiple limiting blocks (19) are fixedly connected to the opposite sides of the dustproof net (15) on the front and rear sides.

5. A dustproof CPU cooling fan according to claim 1, characterized in that: A temperature detector (20) is fixedly connected to the top of the bismuth telluride module (5), and a temperature display (21) is fixedly connected to the right side of the outer wall of the heat sink (1).

6. A dustproof CPU cooling fan according to claim 1, characterized in that: A fixing block (22) is fixedly connected to the right side of the outer wall of the heat sink (1), and a sign (23) is fixedly connected to the right side of the fixing block (22).

7. A dustproof CPU cooling fan according to claim 1, characterized in that: A lamp holder (24) is fixedly connected to the top of the inner wall of the heat sink (1), and a lighting lamp (25) is threadedly connected to the bottom end of the lamp holder (24).

8. A dustproof CPU cooling fan according to claim 1, characterized in that: A vibrator (26) is fixedly connected to the left side of the inner wall of the heat sink (1), and a dust collection box (27) is fixedly connected to the rear side of the heat sink (1).

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